The PCCOM PCI bus 8 port
adapter is an 32 bits PCI bus board with Plug and Play (PnP) features,
it provides eight asynchronous serial communication ports (RS232
or RS422/RS485), which link the computer and serial peripheral devices
such as terminals, modems, serial printers, plotters, ... etc.
The PCCOM PCI bus 8 port
adapter is particularly suited to facilitate the connection of terminals
(VDUs) in multi-user operating systems. The PCCOM board may be installed
in any Pentium or hardware compatible systems. The PnP features let
hardware configuration for IRQ and I/O address is detected by BIOS
automatically, you don’t need set switch and jumper.
Since most of the computer
has its own COM1 and COM2, the PCCOM PCI bus 8 port adapter can be
configured from COM4.
On board ST16C554 chip
provides four 16550 functions which contains 16 bytes FIFO buffer
for each 16550 ports. There are two kinds of mode can be choose,
one is normal speed mode that its baud rate up to 115200, another
is high speed mode that its baud rate up to 460K.
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